Allied Telesis AT-SBx81CFC960 - Manual (Page 238)

Chapter 12: Replacing Modules
238 Section II: Installing the Chassis
Note
If the power wires are connected to the terminal block with the right
angle terminals, go to step 5.
4. Use a #1 screwdriver to loosen the two screws that secure the plastic
cover over the terminal block and slide the cover to the right. You may
need to slightly lift the locking handle to access the bottom screw.
Refer to Figure 159.
The plastic cover may not be present if the lead wires are connected to
the terminal block with the right angle terminals. If this is the case, you
may skip this step.
Figure 159. Opening the Plastic Window on the Terminal Block
5. Use a #3 screwdriver to remove the negative (-) lead wire from the
terminal block. The negative lead wire is on the right. Refer to Figure
160 on page 239.